Add trusted browsers user setting module

- Add trusted browsers help section

doc/Two-Factor-Authentication.md

@@ -72,3 +72,10 @@ We recommend generating a single app-specific password for each separate third-p
 
 You can also revoke any and all app-specific password you generated this way.
 This may log you out of the third-party application(s) you used the revoked app-specific password to log in with.
+
+## Trusted browsers
+
+As a convenience, during two-factor authentication it is possible to identify a browser as trusted.
+This will skip all further two-factor authentication prompt on this browser.
+
+You can remove any or all of these trusted browsers in the two-factor authentication settings.

src/Module/Settings/TwoFactor/Index.php

@@ -78,6 +78,11 @@ class Index extends BaseSettings
 						DI::baseUrl()->redirect('settings/2fa/app_specific?t=' . self::getFormSecurityToken('settings_2fa_password'));
 					}
 					break;
+				case 'trusted':
+					if ($has_secret) {
+						DI::baseUrl()->redirect('settings/2fa/trusted?t=' . self::getFormSecurityToken('settings_2fa_password'));
+					}
+					break;
 				case 'configure':
 					if (!$verified) {
 						DI::baseUrl()->redirect('settings/2fa/verify?t=' . self::getFormSecurityToken('settings_2fa_password'));
@@ -130,6 +135,7 @@ class Index extends BaseSettings
 			'$disable_label'        => DI::l10n()->t('Disable two-factor authentication'),
 			'$recovery_codes_label' => DI::l10n()->t('Show recovery codes'),
 			'$app_specific_passwords_label' => DI::l10n()->t('Manage app-specific passwords'),
+			'$trusted_browsers_label' => DI::l10n()->t('Manage trusted browsers'),
 			'$configure_label'      => DI::l10n()->t('Finish app configuration'),
 		]);
 	}

src/Module/Settings/TwoFactor/Trusted.php

@@ -0,0 +1,110 @@
+<?php
+
+namespace Friendica\Module\Settings\TwoFactor;
+
+use Friendica\Core\Renderer;
+use Friendica\DI;
+use Friendica\Module\BaseSettings;
+use Friendica\Security\TwoFactor;
+use Friendica\Util\Temporal;
+use UAParser\Parser;
+
+/**
+ * Manages users' two-factor trusted browsers in the 2fa_trusted_browsers table
+ */
+class Trusted extends BaseSettings
+{
+	public static function init(array $parameters = [])
+	{
+		if (!local_user()) {
+			return;
+		}
+
+		$verified = DI::pConfig()->get(local_user(), '2fa', 'verified');
+
+		if (!$verified) {
+			DI::baseUrl()->redirect('settings/2fa');
+		}
+
+		if (!self::checkFormSecurityToken('settings_2fa_password', 't')) {
+			notice(DI::l10n()->t('Please enter your password to access this page.'));
+			DI::baseUrl()->redirect('settings/2fa');
+		}
+	}
+
+	public static function post(array $parameters = [])
+	{
+		if (!local_user()) {
+			return;
+		}
+
+		$trustedBrowserRepository = new TwoFactor\Repository\TrustedBrowser(DI::dba(), DI::logger());
+
+		if (!empty($_POST['action'])) {
+			self::checkFormSecurityTokenRedirectOnError('settings/2fa/trusted', 'settings_2fa_trusted');
+
+			switch ($_POST['action']) {
+				case 'remove_all' :
+					$trustedBrowserRepository->removeAllForUser(local_user());
+					info(DI::l10n()->t('Trusted browsers successfully removed.'));
+					DI::baseUrl()->redirect('settings/2fa/trusted?t=' . self::getFormSecurityToken('settings_2fa_password'));
+					break;
+			}
+		}
+
+		if (!empty($_POST['remove_id'])) {
+			self::checkFormSecurityTokenRedirectOnError('settings/2fa/trusted', 'settings_2fa_trusted');
+
+			if ($trustedBrowserRepository->removeForUser(local_user(), $_POST['remove_id'])) {
+				info(DI::l10n()->t('Trusted browser successfully removed.'));
+			}
+
+			DI::baseUrl()->redirect('settings/2fa/trusted?t=' . self::getFormSecurityToken('settings_2fa_password'));
+		}
+	}
+
+
+	public static function content(array $parameters = []): string
+	{
+		parent::content($parameters);
+
+		$trustedBrowserRepository = new TwoFactor\Repository\TrustedBrowser(DI::dba(), DI::logger());
+		$trustedBrowsers = $trustedBrowserRepository->selectAllByUid(local_user());
+
+		$parser = Parser::create();
+
+		$trustedBrowserDisplay = array_map(function (TwoFactor\Model\TrustedBrowser $trustedBrowser) use ($parser) {
+			$dates = [
+				'created_ago' => Temporal::getRelativeDate($trustedBrowser->created),
+				'last_used_ago' => Temporal::getRelativeDate($trustedBrowser->last_used),
+			];
+
+			$result = $parser->parse($trustedBrowser->user_agent);
+
+			$uaData = [
+				'os' => $result->os->family,
+				'device' => $result->device->family,
+				'browser' => $result->ua->family,
+			];
+
+			return $trustedBrowser->toArray() + $dates + $uaData;
+		}, $trustedBrowsers->getArrayCopy());
+
+		return Renderer::replaceMacros(Renderer::getMarkupTemplate('settings/twofactor/trusted_browsers.tpl'), [
+			'$form_security_token' => self::getFormSecurityToken('settings_2fa_trusted'),
+			'$password_security_token' => self::getFormSecurityToken('settings_2fa_password'),
+
+			'$title'               => DI::l10n()->t('Two-factor Trusted Browsers'),
+			'$message'             => DI::l10n()->t('Trusted browsers are individual browsers you chose to skip two-factor authentication to access Friendica. Please use this feature sparingly, as it can negate the benefit of two-factor authentication.'),
+			'$device_label'        => DI::l10n()->t('Device'),
+			'$os_label'            => DI::l10n()->t('OS'),
+			'$browser_label'       => DI::l10n()->t('Browser'),
+			'$created_label'       => DI::l10n()->t('Trusted'),
+			'$last_used_label'     => DI::l10n()->t('Last Use'),
+			'$remove_label'        => DI::l10n()->t('Remove'),
+			'$remove_all_label'    => DI::l10n()->t('Remove All'),
+
+			'$trusted_browsers'    => $trustedBrowserDisplay,
+		]);
+	}
+}

static/routes.config.php

@@ -385,6 +385,7 @@ return [
 			'/recovery'     => [Module\Settings\TwoFactor\Recovery::class,    [R::GET, R::POST]],
 			'/app_specific' => [Module\Settings\TwoFactor\AppSpecific::class, [R::GET, R::POST]],
 			'/verify'       => [Module\Settings\TwoFactor\Verify::class,      [R::GET, R::POST]],
+			'/trusted'      => [Module\Settings\TwoFactor\Trusted::class, [R::GET, R::POST]],
 		],
 		'/delegation[/{action}/{user_id}]' => [Module\Settings\Delegation::class,       [R::GET, R::POST]],
 		'/display'                 => [Module\Settings\Display::class,             [R::GET, R::POST]],

view/templates/settings/twofactor/index.tpl

@@ -30,6 +30,7 @@
 {{if $has_secret && $verified}}
 		<p><button type="submit" name="action" id="confirm-submit-button" class="btn btn-primary confirm-button" value="recovery">{{$recovery_codes_label}}</button></p>
 		<p><button type="submit" name="action" id="confirm-submit-button" class="btn btn-primary confirm-button" value="app_specific">{{$app_specific_passwords_label}}</button></p>
+		<p><button type="submit" name="action" id="confirm-submit-button" class="btn btn-primary confirm-button" value="trusted">{{$trusted_browsers_label}}</button></p>
 {{/if}}
 {{if $has_secret && !$verified}}
 		<p><button type="submit" name="action" id="confirm-submit-button" class="btn btn-primary confirm-button" value="configure">{{$configure_label}}</button></p>

view/templates/settings/twofactor/trusted_browsers.tpl

@@ -0,0 +1,48 @@
+<div class="generic-page-wrapper">
+	<h1>{{$title}} <a href="help/Two-Factor-Authentication" title="{{$help_label}}" class="btn btn-default btn-sm"><i aria-hidden="true" class="fa fa-question fa-2x"></i></a></h1>
+	<div>{{$message nofilter}}</div>
+
+	<form action="settings/2fa/trusted?t={{$password_security_token}}" method="post">
+		<input type="hidden" name="form_security_token" value="{{$form_security_token}}">
+		<table class="trusted-passwords table table-hover table-condensed table-striped">
+			<thead>
+				<tr>
+					<th>{{$device_label}}</th>
+					<th>{{$os_label}}</th>
+					<th>{{$browser_label}}</th>
+					<th>{{$created_label}}</th>
+					<th>{{$last_used_label}}</th>
+					<th><button type="submit" name="action" class="btn btn-primary btn-small" value="remove_all">{{$remove_all_label}}</button></th>
+				</tr>
+			</thead>
+			<tbody>
+{{foreach $trusted_browsers as $trusted_browser}}
+				<tr{{if $generated_trusted_browser && $trusted_browser.id == $generated_trusted_browser.id}} class="success"{{/if}}>
+					<td>
+		                {{$trusted_browser.device}}
+					</td>
+					<td>
+		                {{$trusted_browser.os}}
+					</td>
+					<td>
+		                {{$trusted_browser.browser}}
+					</td>
+					<td>
+						<span class="time" title="{{$trusted_browser.created}}" data-toggle="tooltip">
+							<time datetime="{{$trusted_browser.created}}">{{$trusted_browser.created_ago}}</time>
+						</span>
+					</td>
+					<td>
+						<span class="time" title="{{$trusted_browser.last_used}}" data-toggle="tooltip">
+							<time datetime="{{$trusted_browser.last_used}}">{{$trusted_browser.last_used_ago}}</time>
+						</span>
+					</td>
+					<td>
+						<button type="submit" name="remove_id" class="btn btn-default btn-small" value="{{$trusted_browser.cookie_hash}}">{{$remove_label}}</button>
+					</td>
+				</tr>
+{{/foreach}}
+			</tbody>
+		</table>
+	</form>
+</div>